fix: make migrations applicable on fresh and old env

There is a problem when running migrations users.0022 migraition on
fresh env since there is a custom code which touches the models and
those fields haven't been yet fully updated until in the 0034 migration.
So this tweaks those migrations dependencies based on migration apply
info.

Refs HP-2441

users/migrations/0020_populate_cors_allowed_origins.py

@@ -1,6 +1,6 @@
 # Generated by Django 2.1.11 on 2019-09-02 13:05
 
-from django.db import migrations
+from django.db import migrations, ProgrammingError
 
 from users.signals import generate_and_save_allowed_origins_from_client_configurations
 
@@ -12,12 +12,26 @@ def populate_allowed_origin(apps, schema_editor):
 def _noop(apps, schema_editor):
     return
 
+from django.db import connection
+
+def check_migration_applied(app_name, migration_name):
+    try:
+        with connection.cursor() as cursor:
+            cursor.execute("SELECT * FROM django_migrations WHERE app=%s AND name=%s", [app_name, migration_name])
+            row = cursor.fetchone()
+    except ProgrammingError:
+        return False
+    return bool(row)
+
+def get_dependencies():
+    if check_migration_applied("users", "0020_populate_cors_allowed_origins"):
+        return [("users", "0019_allowedorigin")]
+    return [("users", "0034_application_algorithm_and_more")]
+
 
 class Migration(migrations.Migration):
 
-    dependencies = [
-        ('users', '0019_allowedorigin'),
-    ]
+    dependencies = get_dependencies()
 
     operations = [
         migrations.RunPython(populate_allowed_origin, _noop),

users/migrations/0034_application_algorithm_and_more.py

@@ -0,0 +1,66 @@
+# Generated by Django 4.2.13 on 2024-07-04 13:39
+
+from django.conf import settings
+from django.db import migrations, models, ProgrammingError
+import django.db.models.deletion
+from django.db import connection
+
+def check_migration_applied(app_name, migration_name):
+    try:
+        with connection.cursor() as cursor:
+            cursor.execute("SELECT * FROM django_migrations WHERE app=%s AND name=%s", [app_name, migration_name])
+            row = cursor.fetchone()
+    except ProgrammingError:
+        return False
+    return bool(row)
+
+def get_dependencies():
+    if check_migration_applied("users", "0020_populate_cors_allowed_origins"):
+        return [("users", "0033_alter_loginmethod_provider_id")]
+    return [("users", "0019_allowedorigin")]
+
+class Migration(migrations.Migration):
+
+    dependencies = get_dependencies()
+
+    operations = [
+        migrations.AddField(
+            model_name="application",
+            name="algorithm",
+            field=models.CharField(
+                blank=True,
+                choices=[
+                    ("", "No OIDC support"),
+                    ("RS256", "RSA with SHA-2 256"),
+                    ("HS256", "HMAC with SHA-2 256"),
+                ],
+                default="",
+                max_length=5,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="application",
+            name="authorization_grant_type",
+            field=models.CharField(
+                choices=[
+                    ("authorization-code", "Authorization code"),
+                    ("implicit", "Implicit"),
+                    ("password", "Resource owner password-based"),
+                    ("client-credentials", "Client credentials"),
+                    ("openid-hybrid", "OpenID connect hybrid"),
+                ],
+                max_length=32,
+            ),
+        ),
+        migrations.AlterField(
+            model_name="application",
+            name="user",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                related_name="%(app_label)s_%(class)s",
+                to=settings.AUTH_USER_MODEL,
+            ),
+        ),
+    ]